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Year 7. Environment and Feeding Relationships. Objectives. In today’s lesson you will learn: About the different habitats organisms live in. How to describe the environment of different habitats. About the special adaptations that organisms have to help them live in their habitat.
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Year 7 • Environment and Feeding Relationships
Objectives In today’s lesson you will learn: • About the different habitats organisms live in. • How to describe the environment of different habitats. • About the special adaptations that organisms have to help them live in their habitat.
Key words • Habitat • Microhabitat • Environment • Adapted • Adaptation • Community
Habitats What is a habitat? The place where an organism lives is called a habitat. Here are some examples of habitats
Different organisms live in different habitats.Can you name two organisms for each of the habitats?
A frog is an amphibian because it lives in water and on land.
Ducks are birds that have waterproof feathers. They live on a pond and on land.
Birds, such as this robin, make their nests in trees and hedges. Birds
A badger makes it’s home under the ground. It sleeps during the day and is awake at night.
An Owl is a bird that sleeps during the day and is awake at night. Owl
A hedgehog is a prickly mammal that sleeps through the winter.
A rabbit burrows under the ground to make a warren to live in.
Environment • The word environment is used to describe what a habitat is like. For example, a desert is dry and hot during the day.
Adaptations • Adaptations are features which organisms have that help them survive in their habitat • Here are some examples ……………
Habitat: They live South West Asia and North Africa desert regions. They are also live in Australia. They live for 40-50 years. Length: 2.2-3.4m, Tail length: 50cm, Height at hump: 1.9-2.3m, Weight: 450-550kg
Adaptations: They are desert animals and have numerous adaptations for life in an arid habitat. • The hump stores fat, which they are able to draw upon for water. • They have webbed feet (to prevent sinking in the sand); • They can close their nostrils and they have a double row of eyelashes to keep out the sand. • They can endure long periods without drinking - up to 17 days. • When they do drink, they can take up to 136 litres (30 gallons) at a time. By producing dry faeces and little urine, they can conserve water. • Their body temperature can rise 6-8 degree Celsius before sweating.
The polar bear is the largest land carnivore and has a reputation as the only animal that actively hunts humans. • Live up to 25 years. • Body length: male: 240-260cm, female: 190-210cm. Weight: male: 400-600kg, female: 200-300kg. They are the largest species of bear and the largest land carnivore. • HabitatThey spend most of their time on Arctic ice floes, and when they are on the shore they remain near the water. Polar bears are found throughout the Arctic. Adaptations: They are strong swimmers and have many adaptations for an aquatic environment • They are well insulated with fat, • Their nostrils close and their ears are held close to their head when underwater. • Their feet are partially webbed. • They have a remarkable sense of smell and can detect a carcass from 3km away. • They have large, furry feet that act as snowshoes. • Their creamy-white fur is dense and water-repellent, enabling them to shake dry after swimming.
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